I haven't completed the co-op campaign but I had a friend over and we played I'd say its overall good I mean having more than 1 person playing that game makes it a bit easier. You can click the respective button to bring up your specific character you're controlling but when your friend is off screen he can't move but he can move the view back to him so its about cooperating as the playstyle suggests since you share the screen. I prefer using the gamepad for the game though.